A hold-down device is disclosed for holding down the leading edges of sheet materials, such as multiple-ply sheets or integrated forms, disposed in a tray of a printer in a horizontal or flat position prior to feeding the leading edge of the top sheet or integrated form into the printer feed mechanism. Because some sheet materials are prone to curling, which causes jamming in the feed mechanism or downstream in printing path within commonly used printers, the disclosed hold-down device maintains the leading edge of the top sheet in a flat or horizontal position so it can be reliably and evenly received in the feeder mechanism of the printer, thereby reducing the chances of jamming when sheet materials that are prone to curling, such as multiple-ply sheets or integrated forms, are being printed. The hold-down device includes a base with two ends. Each end may include a retainer or other means for detachably connecting the base to the paper tray of the printer. The base is hingedly connected to a pair of parallel arms. Each arm includes a distal end that engages or rests on the top sheet adjacent, but proximal to the leading edge of the top sheet to prevent curling.